摘要
分别用不同浓度的NaCl以及NaCl+CaCl2溶液处理玉米幼苗,然后测定丙二醛(MDA)含量、脯氨酸(Pro)含量、过氧化物酶(POD)活性等生理指标。结果表明:玉米在NaCl+CaCl2溶液的处理下,其生长和生理变化与单独NaCl溶液处理不同。在相同浓度的NaCl溶液处理下,喷施CaCl2溶液的玉米幼苗其MDA含量低于单独NaCl胁迫,而Pro含量、POD活性则高于单独NaCl胁迫。表明外源CaCl2能够降低玉米幼苗的盐害,提高其耐盐性。
Seedlings of Zea mays L. were treated with different concentrations of NaCl and NaCl spraying CaCl2 ,then measuring physiological indicators such as malondialdehyde （MDA）,proline （Pro） content and peroxidase （POD） activity. The re suits showed that the changes in growth and physiology of Zea mays L. under NaCl spraying CaCl2 treatment were different from those only under NaCl stress. Under the same NaCl concentration,the MDA content of Zea mays L. treated by CaCl2 were lower than that treated only by NaCl;while the content of proline and peroxidase activity were higher than thoes which under NaCl stress only. From the above factors,it could be concluded that CaCl2 could alleviate NaCl injury in Zea mays L. seedlings.
出处
《黑龙江农业科学》
2009年第3期50-51,53,共3页
Heilongjiang Agricultural Sciences
